Pre-saturation monitoring device for corrosive standard gas

Abstract

The utility model relates to the technical field of gas pre-saturation monitoring, and discloses a corrosive standard gas pre-saturation monitoring device which comprises a base, an air inducing pipeline is installed on the top of the base, a vacuum pump is installed in the air inducing pipeline, and a monitoring assembly is arranged on the outer surface of the base. According to the pre-saturation monitoring device for the corrosive standard gas, through the arrangement of the control valve and the sealing cover, the opening of the gas storage bottle can be closed, the corrosive standard gas is prevented from continuously entering, and therefore the phenomenon that the corrosive gas overflows out of the bottle body in the filling process is avoided, the protection effect on nearby workers is improved, and meanwhile the safety of the workers is improved. The gas storage bottle can be rapidly separated from the pressure sensor and the vacuum pump through sleeving of the limiting cylinder and the gas storage bottle and sleeving of the connecting hose on the gas inlet of the control valve, so that workers can rapidly replace the filled gas storage bottle, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pre-saturation monitoring, in particular to a pre-saturation monitoring device for corrosive standard gas. Background Art

[0002] Standard gas is a term in the gas industry. Standard substances are measurement standards with uniform concentration, good stability and accurate measurement values. They have the basic functions of reproducing, preserving and transferring measurement values. They are used in the fields of physical, chemical, biological and engineering measurement to calibrate measuring instruments and measurement processes, evaluate the accuracy of measurement methods and the detection capabilities of testing laboratories, determine the characteristic measurement values ​​of materials or products, and conduct measurement value arbitration.

[0003] For example, the Chinese patent number CN218687400U is a corrosive gas collection device for a filling head. In this utility model, moisture in the corrosive gas is absorbed to reduce the water content of the corrosive gas, which is convenient for subsequent treatment of the corrosive gas. However, in this utility model, the corrosive standard gas is filled and processed by a blower and other structures, and there is a lack of a structure for monitoring the quality of the filled gas in the storage device, which leads to overflow and waste during the filling. In addition, due to the harmfulness of the corrosive gas, it is easy to cause damage to nearby workers. Therefore, a pre-saturation monitoring device for corrosive standard gas is proposed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the utility model provides a pre-saturation monitoring device for corrosive standard gas, which has the advantages of easy monitoring, convenient replacement and easy replacement. It solves the problem that the comparative documents lack a structure for monitoring the filling saturation of corrosive standard gas, resulting in the risk of overflow during the filling process and affecting the health of workers.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solutions: a device for monitoring pre-saturation of corrosive standard gas, comprising a base, an air induced duct is installed on the top of the base, a vacuum pump is installed inside the air induced duct, and a monitoring component is arranged on the outer surface of the base;

[0008] The monitoring component includes a pressure sensor, a limit cylinder, a gas cylinder, a sealing cover, a control valve, a connecting hose, a PLC controller, a buzzer and an alarm light. A pressure sensor is arranged on the right side of the base, a limit cylinder is installed on the top of the pressure sensor, a gas cylinder is arranged on the top of the pressure sensor, a sealing cover is connected to the top of the gas cylinder, a control valve is installed on the top of the sealing cover, a connecting hose is connected to the air inlet of the control valve, a PLC controller is installed on the front side of the base, a buzzer is installed on the front side of the base, and an alarm light is installed on the top of the PLC controller.

[0009] Furthermore, the limiting cylinder is sleeved on the outer surface of the gas storage bottle, and the right end of the vacuum pump passes through the opening on the right side of the air duct and extends to the outside of the air duct.

[0010] Furthermore, an internal thread is provided on the inner wall of the sealing cover, and the sealing cover is connected to the gas cylinder thread via the internal thread.

[0011] Furthermore, the left end of the connecting hose is fixedly connected to the exhaust nozzle of the vacuum pump, and the right end of the connecting hose is sleeved on the outer surface of the air inlet of the control valve.

[0012] Furthermore, a wire is provided on the right side of the PLC controller, and the right end of the wire is connected to the pressure sensor.

[0013] Furthermore, the left side of the PLC controller is electrically connected to the buzzer through a line, and the alarm light is electrically connected to the PLC controller.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The pre-saturation monitoring device for corrosive standard gas can seal the opening of the gas cylinder through the control valve and the sealing cover to prevent the continued entry of the corrosive standard gas, thereby avoiding the phenomenon of corrosive gas overflowing from the outside of the bottle during filling, thereby improving the protection effect for nearby workers. At the same time, by using the sleeve of the limit cylinder and the gas cylinder, and the sleeve of the connecting hose on the air inlet of the control valve, the gas cylinder can be quickly separated from the pressure sensor and the vacuum pump, so that the staff can quickly replace the filled gas cylinder, thereby improving work efficiency and further facilitating the user's operation and use.

[0017] 2. The pre-saturation monitoring device for corrosive standard gas uses a wire to electrically connect the pressure sensor and the PLC controller. The alarm light and the buzzer are electrically connected to the PLC controller. The pressure sensor continuously monitors the weight change of the gas cylinder thereon, thereby sending real-time data to the PLC controller. When the preset threshold is reached, the buzzer and the alarm light can be activated to warn the staff and remind the staff that the current filling of the corrosive standard gas has reached the pre-saturation state, which is convenient for the staff to quickly understand the current situation and manage and control it in time, thereby preventing the corrosive standard gas from overflowing due to excessive filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0020] Figure 3 It is a front view cross-sectional schematic diagram of the utility model.

[0021] In the figure: 1. base; 2. air duct; 3. vacuum pump; 4. monitoring component; 401. pressure sensor; 402. limit cylinder; 403. gas cylinder; 404. sealing cover; 405. control valve; 406. connecting hose; 407. PLC controller; 408. buzzer; 409. alarm light. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 In this embodiment, a corrosive standard gas pre-saturation monitoring device includes a base 1, an air duct 2 is installed on the top of the base 1, a vacuum pump 3 is installed inside the air duct 2, and a monitoring component 4 is provided on the outer surface of the base 1.

[0024] exist Figure 1-3 In the figure, the monitoring assembly 4 is composed of nine components including a pressure sensor 401, a limit cylinder 402, a gas cylinder 403, a sealing cover 404, a control valve 405, a connecting hose 406, a PLC controller 407, a buzzer 408 and an alarm light 409, achieving the advantages of easy monitoring, convenient replacement and easy exchange.

[0025] exist Figure 1 and Figure 2 In the figure, a pressure sensor 401 is arranged on the right side of the base 1, a limiting cylinder 402 is installed on the top of the pressure sensor 401, a gas cylinder 403 is arranged on the top of the pressure sensor 401, and the pressure sensor 401 is used to detect the weight change of the upper gas cylinder 403, and input the data into the PLC controller 407 in real time through the wire, so as to facilitate the staff to observe and understand.

[0026] exist Figure 2 and Figure 3 In the figure, a sealing cover 404 is connected to the top of the gas cylinder 403, a control valve 405 is installed on the top of the sealing cover 404, a connecting hose 406 is connected to the air inlet of the control valve 405, and the sealing cover 404 connects the control valve 405 and the gas cylinder 403, and is used to control the entry of corrosive standard gas through the control valve 405, and control whether the gas cylinder 403 can take in air.

[0027] exist Figure 2 and Figure 3 In the figure, a PLC controller 407 is installed on the front side of the base 1, a buzzer 408 is installed on the front side of the base 1, and an alarm light 409 is installed on the top of the PLC controller 407. The PLC controller 407 is used to control the start-up of each electrical component, and the buzzer 408 and the alarm light 409 are used to warn the staff through sound and light.

[0028] It should be noted that this section is intended to provide a background or context for the implementation methods stated in the claims, and detailed descriptions of known functions and known components are omitted. At the same time, fixed and movable installations are determined according to actual application methods. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment. The description here is not admitted to be prior art because it is included in this section.

[0029] When implementing, follow these steps:

[0030] 1) Start the vacuum pump 3 to extract the corrosive standard gas from the air duct 2 and inject it into the gas storage bottle 403 through the connecting hose 406, the control valve 405 and the sealing cover 404;

[0031] 2) Then, the gas cylinder 403 changes its own weight due to the injection of the standard gas, so that the pressure sensor 401 transmits the monitored change electrical signal to the PLC controller 407;

[0032] 3) Finally, when the corrosive standard gas inside the gas cylinder 403 is pre-saturated, the weight change detected by the pressure sensor 401 reaches the set threshold, and the PLC controller 407 alerts the staff through the buzzer 408 and the warning light 409, asking the staff to turn off the vacuum pump 2 and the control valve 405 in turn.

[0033] To sum up, the pre-saturation monitoring device for corrosive standard gas can close the opening of the gas cylinder 403 through the control valve 405 and the sealing cover 404, prevent the corrosive standard gas from continuing to enter, thereby avoiding the phenomenon of corrosive gas overflowing from the outside of the bottle during filling, and improving the protection effect for nearby workers. At the same time, by utilizing the sleeve of the limit tube 402 and the gas cylinder 403, and the sleeve of the connecting hose 406 on the air inlet of the control valve 405, the gas cylinder 403 can be quickly separated from the pressure sensor 401 and the vacuum pump 3, so that the staff can quickly replace the filled gas cylinder 403, thereby improving work efficiency and further facilitating the user's operation and use.

[0034] Moreover, the pressure sensor 401 and the PLC controller 407 are electrically connected by wires, and the alarm light 409 and the buzzer 408 are electrically connected to the PLC controller 407. The pressure sensor 401 continuously monitors the weight change of the gas cylinder 403 thereon, thereby sending real-time data to the PLC controller 407. When the preset threshold is reached, the buzzer 408 and the alarm light 409 can be activated to warn the staff and remind the staff that the current filling of the corrosive standard gas has reached a pre-saturated state, so that the staff can quickly understand the current situation and manage and control it in time, thereby preventing the corrosive standard gas from overflowing due to excessive filling, and solving the problem that the comparative document lacks a structure for monitoring the filling saturation of the corrosive standard gas, resulting in the risk of overflow during the filling process, affecting the health of the staff.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring pre-saturation of corrosive standard gas, comprising a base (1), characterized in that: An air duct (2) is installed on the top of the base (1), a vacuum pump (3) is installed inside the air duct (2), and a monitoring component (4) is provided on the outer surface of the base (1); The monitoring assembly (4) comprises a pressure sensor (401), a limiting cylinder (402), a gas storage bottle (403), a sealing cover (404), a control valve (405), a connecting hose (406), a PLC controller (407), a buzzer (408) and an alarm light (409). The pressure sensor (401) is arranged on the right side of the base (1), the limiting cylinder (402) is installed on the top of the pressure sensor (401), and the top of the pressure sensor (401) is provided with a pressure sensor (401). A gas storage bottle (403) is provided, the top of the gas storage bottle (403) is connected to a sealing cover (404), the top of the sealing cover (404) is installed with a control valve (405), the air inlet of the control valve (405) is connected to a connecting hose (406), a PLC controller (407) is installed on the front side of the base (1), a buzzer (408) is installed on the front side of the base (1), and an alarm light (409) is installed on the top of the PLC controller (407).

2. The device for monitoring pre-saturation of corrosive standard gas according to claim 1, characterized in that: The limiting cylinder (402) is sleeved on the outer surface of the gas storage bottle (403), and the right end of the vacuum pump (3) passes through the opening on the right side of the air duct (2) and extends to the outside of the air duct (2).

3. The device for monitoring pre-saturation of corrosive standard gas according to claim 1, characterized in that: An internal thread is provided on the inner wall of the sealing cover (404), and the sealing cover (404) is threadably connected to the gas storage bottle (403) via the internal thread.

4. The device for monitoring pre-saturation of corrosive standard gas according to claim 1, characterized in that: The left end of the connecting hose (406) is fixedly connected to the exhaust nozzle of the vacuum pump (3), and the right end of the connecting hose (406) is sleeved on the outer surface of the air inlet of the control valve (405).

5. The device for monitoring pre-saturation of corrosive standard gas according to claim 1, characterized in that: A wire is provided on the right side of the PLC controller (407), and the right end of the wire is connected to the pressure sensor (401).

6. The device for monitoring pre-saturation of corrosive standard gas according to claim 1, characterized in that: The left side of the PLC controller (407) is electrically connected to the buzzer (408) via a line, and the alarm light (409) is electrically connected to the PLC controller (407).

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